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    brijmohan123456's Avatar
    brijmohan123456 Posts: 41, Reputation: 1
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    #1

    Nov 24, 2012, 05:05 AM
    Height of the tower
    A ball thrown vertically upwards with a speed of 19.6m/s from the top of a tower returns to earth in 6 seconds.what is the height of tower?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Nov 24, 2012, 03:06 PM
    HHint: use d=1/2at^2+v_0t+d_0. Set d=0, you have values for a (-g), t, and v_0, so you can solve for d_0.
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